Here is a link to the catalog. Tubas begin on page 12 of the PDF (page 11 of the catalog).
Interesting is the Model 159 in CC -- a "moderne kleine C-tuba," modern small CC tuba. It has the same bore as the F tubas (18.5mm / .728") with a 14" bell. Here it is in the F tuba lineup:

I wonder if this was a response to the Miraphone 184's popularity around that time (Johnson/Bobo/LA, etc.)?
There are also some descriptors of double tubas in F/CC or F/BBb that were available to order, as well as the 168, which had an interesting layout. 3+2, with the right hand valves being one, one-half, and two steps, (essentially 1, 2, and 23 length) and the left hand being 2.5 steps and one-half steps (essentially a 4th valve length and another second valve).
Fingering chart was also included with the Vienna-system F, which I had (have?) an original copy of somewhere from when I owned my 3+3 Alex... good memories.
When did the 173 come about? It's not in this catalog.